20121001010002 has 32 divisors (see below), whose sum is σ = 33744941729280. Its totient is φ = 8942055655680.

The previous prime is 20121001009931. The next prime is 20121001010009. The reversal of 20121001010002 is 20001010012102.

It is not an unprimeable number, because it can be changed into a prime (20121001010009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48923074 + ... + 49332637.

It is an arithmetic number, because the mean of its divisors is an integer number (1054529429040).

Almost surely, 2^{20121001010002} is an apocalyptic number.

20121001010002 is a deficient number, since it is larger than the sum of its proper divisors (13623940719278).

20121001010002 is a wasteful number, since it uses less digits than its factorization.

20121001010002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98256066.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 20121001010002 its reverse (20001010012102), we get a palindrome (40122011022104).

The spelling of 20121001010002 in words is "twenty trillion, one hundred twenty-one billion, one million, ten thousand, two".